Gas-meter valve



June .1 1926. 1,586,685

G. H. MOLDEN GAS METER VALVE Filed August" 8. 1925 By W I w 2 ATTORNEZ" mmvrox Patented June 1 1926 UNITED STATES PATENT OFFICE.

GEORGE H. MOLDEN, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SPRAGTJ'E METER COMPANY, OF BRIDGEPORT, CONNECTICUT.

GAS-METER 'vALvE.

Application filed August This invent-ion relates to glass valve discs especially adapted for certain type of gas meters. It consists in providing a metal cover for the glass disc and substituting a metal crank pin step for the frail, breakable glass step heretofore used.

The novelty of construction and advan tage of the device will be fully understood from the following description and claims when taken in connection with the annexed drawings, in which Figure 1 represents an upper plan View of I the valve disc cover;

Figure 2 is an inside plan view of the disc and cover;

Figure 3 is a side elevation of the disc and its cover;

Figure 4: is a central sectional view of the disc, cover, and step, also full view of the crank shaft;

Figure 5 is an inside plan view of the cover;

Figure 6 is a side elevation of the disc, cover and valve seat, and broken view of the crank shaft, and

Figure? is a broken sectional view of the valve disc and a. modified broken sectional view of the cover.

The valve disc 1 is of glass having the central opening 2, and is seated in the cover 8 preferably struck up of thin metal to form the flange 1, housing 5 forming the recess 6 registering with the central opening 2 of the glass disc 1. The central hole 7 is for the reception of the metal step 8 having the central hole 9 adapted to receive the crank pin 10 secured to the crank 11 mounted on the crank shaft 12. The cover 3 supports the metal crank pin step 8. This crank shaft is a conventional part of the interior mechanism of a gas meter adapted to be actuated by the diaphragms, not shown, to impart an eccentric movement to the valve disc on the valve seat 13, Figure 6.

It has heretofore been the custom to castthe glass disc with a central recess, similar to the recess 6 of the metal cover, including a glass step for the crank pin as an integral part of the construction, but owing to the contractile character of glass, flaws too small to be readily detected frequently occurred at the base of the glass step, and breakagi at that point was of frequent occurrence 8, 1925. Serial No. 49,069.

due to the unavoidable jar in meter shipments. To avoid this trouble, the construction as above set forth has been adopted without adding to the weight of the nonmetallic disc.

VVlIile the flanges 4 of the cover could be dispensed with and the glass disc cemented to the cover, the flange affords more ready means for centralizing the disc with respect to the metal cover.

In the modified construction shown in Figure 7, the housing of the cover is only used with flange 4 anchored into the openmg 2 of the glass disc. Extending the cover over the outer surface of the glass disc with its periphery flanged, as shown in the other views, affords a more stable construction. It will thus be readily seen that various structural changes could be made for locating and suspending an independently constructed crank pin step.

The term metal as applied to the independent crank pin step embraces any well known material suitable for the purpose required.

The crank pin step and its support could be made of one piece of metal, but as lightness and cheapness of construction are important features, they are preferably separated. However, I hold myself at liberty to adopt either method.

Having thus described my invention what I claim is 1. A non-metallic valve disc for gas meters having a central opening therethrough, a support mounted on the disc having a recess overlying the opening, a crank pin step secured to the support and projecting into said opening.

2. A non-metallic valve disc for gas meters having a central opening therethrough, a crank pin step, a support therefor, said support mounted on the valve disc with the step projecting into the valve opening.

3. A non-metallic valve disc of the character described having a central opening, a cover embracing the outer surface of the valve disc having a housing registering with the opening, and a crank pin step projecting inwardly from the housing.

In testimony whereof I afiix my signature.

GEORGE H. MOLDEN. 

